hongyu2742 hongyu2742 18-12-2019 Health contestada What would happen if someone stabbed your leg with a syringe full of calcium and injected the calcium directly into your muscle cells? a. The actin active sites would stay covered by tropomyosin. b. Cross-bridges would form in the absence of an action potential from a motor neuron. c. Tropomyosin would bind the calcium and change the conformation of troponin. d. Myosin would be unable to hydrolyze ATP.